Lock.



J. SIPOS.

LOOK.

APPLICATION FILED APR. 5, 1910.

962,792. Patented Jun e 28, 1910.

INVENTOI? mom/5r v "UNITED srarns ra NT FFICE.

JOSEPH SIPOS, or SOUTH NORWALK, CONNECTICUT.

LOCK.

To all whom it may concern:

Be it known that I, JOSEPH Sires, a subject of the King of Hungary, and a resident of South Norwalk, in the county of Fairlield and State of Connecticut, have invented certain new and useful Improvements in Locks, of which the following is a specification.

The present invention relates to looks adapted for boxes, trunks, cabinets and similar articles, but which may be, of course, otherwise employed, if desired.

One of the objects of the invention is to provide a simple and inexpensive lock of this character which is eflicient in its operation, consisting of as few parts as possible, and the locking bolt of which can be withdrawn only by a key of special construction.

\Vith these and other objects in View, which will appear as the nature of the invention is better understood, the same consists of the construction, arrangement and combination of parts hereinafter fully described, pointed out in the appended claims and illustrated in the accompanying drawings, in which Figure 1. is a front elevation of a lock constructed in accordance with the present invention applied to a door in position for operation; Fig. 2 is a similar view of the lock, the cover plate being broken away in order to more clearly show the interior mechanism; Fig. 3 is a similar view of the cap plate of the lock with one of the locking bolts removed; Fig. 4 is a section taken on line 4, 4 of Fig. 1; Fig. 5 is a section of a detail of construction; and Fig. 6 is a front elevation, partly in section, of the key for the look.

In the drawings, the numeral 6 indicates the door and the numeral 7 the jamb. To the door is hinged at 8 the lock 9, comprising a casing 10, which is closed by a cap plate 11, having an opening 12 into which protrudes the keeper 13, attached to the jamb by any suitable means. The main locking bolt is denoted by the numeral 14, and comprises a stationary oblong member, slidably arranged in the lock case and being provided at its front end with projections 15, 15, adapted to enter the recess of the keeper and kept in such position by means of a spring- 16, bearing against the lock case and the locking bolt. This main locking bolt is guided in its movement by the sides Specification of Letters Patent. Patented J 111 9 28, 1910, Application filed April 5, 1910.

Serial No. 553,572.

of the lock Case, and kept in its operating plane by means of lugs 17, 17 carried by or made integral with the cap plate 11. The locking bolt is provided with a suitably shaped opening 18, into which the bit 19 of the key 20 enters when it is desired to retract the bolt from its locking position.

Underneath the main looking bolt 14 is arranged a secondary locking bolt 21, which is guided in its movement by lugs 22, 22, and held in its projected position by means of a spring 23. The beveled end 24 of the secondary locking bolt rests upon the beveled end 25 of a tumbler 26, which is normally kept by means of a spring 27 in a recess 28 in the main locking bolt 14. One end of the tumbler is provided with a cylindrical recess 29, engaged by a pin 30 upon the cap plate 11, while the other end carries a pin 31, slidably arranged in the cylindrical hole 32 of a post 33, which is attached to the cap plate 11 and projects into the opening 18 in the main locking bolt 14. The post 33 is adapted to enter the bore in the stem of the key 20, in which is centrally arranged a pin 34, by which the tumbler 26 is operated when the key is inserted into the key-hole 35 in the lock case. To the underside of the main bolt 14 is attached a finger 36, normally resting against the sides of the secondary bolt 21, whereby the latter is withdrawn from the keeper as the main bolt is being retracted.

The operation of the device is as follows: As the key is inserted into the key-hole and its bore is engaged by the post 33, the tumbler 26 is forced back by means of the pin 34 of the key, against the action of the spring 27, toward the cap plate 11, whereby the said tumbler is disengaged from the main locking bolt 14 and the secondary looking bolt 21. As now the key is turned, the bit of the same withdraws or retracts the main tumbler from the keeper and by means of the pin 36 the secondary bolt is also withdrawn from said keeper, allowing the lock case to be swung around its hinge 8 and the door to be opened.

It will be observed that the tumbler 26 is not pivoted to the look case, as usual in such mechanisms, but moves in a direction at right angles to the face of the main locking bo t.

Many changes may be made, of course, in the construction, size and arrangement of the parts without departing from the spirit or sacrificing any of the advantages of the invention.

What I claim is:

1. In a lock, the combination with a casing, of two operatively connected locking bolts therein, and a tumbler engaging both locking bolts and moving in a direction at right angles to the face of one of the looking bolts when disengaged from said bolts.

2. In a lock, the combination with a casing, of a main locking bolt, a secondary locking bolt, a finger upon said main looking bolt engaging said secondary bolt, a tumbler engaging both bolts and moving in a direction at right angles to the face of said main locking bolt when disengaged from said bolts.

3. In a lock, the combination with a casing, of a main locking bolt, a secondary looking bolt, means for operatively connecting said bolts, whereby said secondary locking bolt is withdrawn from the keeper as said main locking bolt is being retracted, a tumbler engaging both bolts, a spring forcing said tumbler in engagement with said bolts, a key-post attached to said casing and having a hole, and a pin secured to said tumbler and fitting the hole of said key-post.

I. In a lock, the combination with a casing, of a main locking bolt, a secondary looking bolt, a finger carried by said main locking bolt and engaging said secondary bolt, whereby the latter is withdrawn from the keeper as said main locking bolt is being retracted, a tumbler engaging both bolts, a spring forcing said tumbler in engagement with said locking bolts, a key-post attached to said casing and having a hole, and a pin secured to said tumbler and fitting the hole of said key-post.

5. In a lock, the combination with a casing, of a main locking bolt, a secondary looking bolt, means for operatively connecting said bolts, whereby said secondary bolt is withdrawn from the keeper as said main locking bolt is being retracted, a tumbler engaging both bolts and adapted to move in a direction at right angles to the face of said main locking bolt, a spring forcing said tumbler in engagement with said bolts, a keypost attached to said casing and having a hole, and a pin secured to said tumbler and fitting the hole of said key-post.

6. In a lock, the combination with a casing, of a main locking bolt, a secondary look ing bolt, a finger carried by said main looking bolt and engaging said secondary bolt, whereby the latter is Withdrawn from the keeper as said main locking bolt is retracted, a tumbler engaging both bolts and adapted to move in a direction at right angles to the face of said main locking bolt, a spring forcing said tumbler in engagement with said locking bolts, a key-post attached to said casing and having a hole, and a pin secured 65 to said tumbler and fitting the hole of said key-post.

Signed at South Norwalk, in the county of F airfield and State of Connecticut, this 25th day of February, A. D. 1910.

JOSEPH SIPOS.

lVitnesses JOHN OZAKO, J AMES PAUL. 

